Systematic error for the analysis of matrix polysaccharides and associated with the addition of 12 sample types to a reference starch determination.

For matrix polysaccharides the error was not significant; n = 7. For different wood types the error was deemed significant in a t-test at pPinus organs were considered together; n = 3. Sample averages all samples. Twig, Mature, and Root average the 4 species. Acer, Magnolia, Cedrus, and Pinus averages the three organs.